Q: What are the prime factors of the number 7,886,208?

 A: 2, 3, 11, 1867

Why are those the prime factors of the number 7,886,208?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 7,886,208

7,886,208
Factor Arrows
23,943,104
Factor Arrows
21,971,552
Factor Arrows
2985,776
Factor Arrows
2492,888
Factor Arrows
2246,444
Factor Arrows
2123,222
Factor Arrows
261,611
Factor Arrows
320,537
Factor Arrows
111,867

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 11, 1867

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 11 x 1,867 = 7,886,208

This can also be written as 27 x 31 x 111 x 1,8671 = 7,886,208

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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